package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;


@Slf4j
@RestController
@RequestMapping("/employee")
@Api(tags = "员工相关接口")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {


        System.out.println(employee);

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }


    /**
     * 员工退出
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功了鉄子");
    }


    /**
     * 新增员工
     *
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> addEmployee(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("当前获取的用户是:{}", employee);
        //设置初始密码123456，需要进行md5加密处理
        String originPassword = DigestUtils.md5DigestAsHex("123456".getBytes());
        employee.setPassword(originPassword);

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        //获得当前登录用户的id
//        Long empID = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empID);
//        employee.setUpdateUser(empID);

        employeeService.save(employee);

        return R.success("新增员工成功了鉄子");
    }

    /**
     * 员工信息分页查询
     *
     * @param page     当前查询页码
     * @param pageSize 每页展示记录数
     * @param name     员工姓名 - 可选参数
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page = {},pageSize = {},name = {}", page, pageSize, name);
        Page<Employee> employeePage = new Page<>(page, pageSize);
        QueryWrapper<Employee> employeeQueryWrapper = new QueryWrapper<>();
        employeeQueryWrapper.lambda().like(StringUtils.isNotEmpty(name), Employee::getName, name);
        employeeQueryWrapper.lambda().orderByDesc(Employee::getUpdateTime);
        employeeService.page(employeePage, employeeQueryWrapper);
        return R.success(employeePage);
    }


    /**
     * 根据id修改员工信息
     *
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        log.info(employee.toString());

//        log.info(String.valueOf(Thread.currentThread().getId()));
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);

        employee.setUpdateTime(LocalDateTime.now());
        employeeService.updateById(employee);

        return R.success("员工信息修改成功了鉄子");
    }

    /**
     * 根据id查询员工信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getByID(@PathVariable Long id) {
        log.info("根据id查询员工信息...");

        Employee employee = employeeService.getById(id);
        if (employee != null) {
            return R.success(employee);
        } else {
            return R.error("查询失败了铁子,你好好想想是不是没这个银儿?");
        }
    }
}
